近水平复合煤层露天矿采场扩帮工程关键参数研究  

Research on Key Parameters of Slope Enlarging Engineering of Near-horizontal Composite Coal Seam Open-Pit Mine

作　　者：韩勇 李青怡 曹博[2] 刘光伟[2] 汪帅 HAN Yong;LI Qingyi;CAO Bo;LIU Guangwei;WANG Shuai(China Energy Investment Xinjiang Hongshaquan Energy Co.,Ltd.,Changji Hui Autonomous Prefecture,Xinjiang 73731l,China;College of Mining,Liaoning Technical University,Fuxin,Liaoning 123000,China)

机构地区：[1]国能投新疆红沙泉能源有限责任公司,新疆昌吉回族自治州737311 [2]辽宁工程技术大学矿业学院,辽宁阜新市123000

出　　处：《矿业研究与开发》2024年第8期75-82,共8页Mining Research and Development

基　　金：国家自然科学基金资助项目(51974144);辽宁省“揭榜挂帅”科技攻关资助项目(2021JH1/10400011);辽宁工程技术大学学科创新团队资助项目(LNTU20TD-07)。

摘　　要：随着内外部环境的变化,露天矿需要提升产能以获取更大的经济效益,而采场扩帮是较为经济的产能提升手段。以复合煤层露天矿扩帮问题为出发点,分析了扩帮区域超前、滞后、协同3种扩帮模式,以协同发展模式为重点,对扩帮工作线长度、扩帮角度及扩帮完成时间等关键参数进行了研究。给定生产剥采比与运距限制,提出了最优工作线长度的确定方法;结合扩帮流程给定扩帮角度约束,通过分析设备布设规律,推导了最优扩帮角度的计算方法;结合现场实际,对扩帮时间进行了分析。研究结果表明:以某复合煤层露天矿为工程实例,确定扩帮后合理工作线长度为1000 m,扩帮角度为60°,扩帮时间为20个月。研究结果可为露天矿采场扩帮工程的实施提供参考。With the change of internal and external environment,open-pit mines need to increase capacity to obtain greater economic benefits,and the stope slope enlarging is a more economical means of capacity improvement.Based on the problem of composite coal seam open-pit mine slope enlarging,three expansion modes including advanced mode,delayed mode and synergistic mode in the slope enlarging area were analyzed.Focusing on the synergistic development mode,the key parameters such as the working line length,the slope enlarging angle and the completion time of the slope enlarging were studied.Given the constraints to production stripping ratio and hauling distance,a method for determining the optimal working line length was proposed.Combined with the slope enlarging angle constraint given by the slope enlarging process,the calculation method of the optimal slope enlarging angle was derived by analyzing the equipment layout patterns.Combined with the actual situation,the slope enlarging time was analyzed.The research results show that taking a composite coal seam open-pit mine as an engineering example,the reasonable working line length after the slope enlarging is determined to be 1000 m,the slope enlarging angle is 60°,and the slope enlarging time is 20 months.The research results can provide a reference for the implementation of open-pit mine slope enlarging engineering.

关 键 词：近水平复合煤层 露天矿 采场扩帮 工作线长度 扩帮角度 

分 类 号：TD216[矿业工程—矿井建设] TD804